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प्रश्न
A body of mass 60 kg has the momentum 3000 kgm/s-1. Calculate: the speed of the body.
बेरीज
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उत्तर
Mass of body = 60 kg
Momentum, p=3000 kgm/s
Momentum = mass x velocity
3000 = 60 x velocity
Velocity =50 m/s
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